GMC DUKW 353
Complete brake hose set consisting of 6 hoses
To show the difference between a GMC 352/353 brake hose and a GMC DUKW brake hose, here is the photo of both hoses.
Above is GMC DUKW 353 with a longer bulkhead fitting through the hull.
Below is GMC 352/353 with normal length bulkhead fitting.